Reversing-gearing for well-rigs.



F. J. MOSER.

REVERSING GEARING FOR WE LL RIGS.

APPUCATLQN FILED MAY I9, 1915. 1,3U2,576n Patented Mayfi, 1919,

2 SHEETS-SHEET l- FL J. MOSER.

REVERSING GEARING F0R1 WELL RIGS.

APPLICATlON FILED MAY 19. ms.

Patented May 6, 1919,,

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' Q Vi/lmeowo mane srA'rns nn rnnrr @FFJWE FRED JOSEPH MOSER, -0F KANE, PENNSYLVANIA.

I REVERSING-GEARING FOR WELL-RIGS.

Application filed May 19, 1915.

To all whom it may concern: Be it known that I, FRED J. Moses, a citizen of the United States, residing at Kane,

in the county of McKean and State of Pennsylvania, have invented new and useful Improvements in Reversing-Gearing for Well- Rigs, of which the following is a specification.

This invention relates to reversing gearing for well rigs and consists in certain improvements in the construction thereof as will be hereinafter fully described and pointed out in the claims.

The rig forming the subject matter is par ticularly adapted for use with an internal combustion engine. These rigs are designed to pump the well and also to afford a means for pulling the tubing in the well. In pulling the tubing from a well the ent re string of tubing is very heavy and requlres very careful handling to prevent accidents especially by the dropping of the tubing in the well. The ordinary method for drawing tubing is to elevate a length or two and then support the joints exposed and detach the joint or tubing thus elevated and then this joint or two is lowered and laid alongside the well. It is desirable in order to expe dite the operation to deposit or lower the tubing in this pulling operation more rapidly than the tubing is elevated so that it is desirable to have the rig run more rapidly in one direction than the other. Also in lowering the tubing in the well it is desirable to have it capable of controlling the speed at which the tubing is lowered and also to slightly lift the tubing if desired so as to bring the joints in proper position for connection and support. The object of the present invention is to simplify and improve the mechanism in a well rig and preferably to carry out the operations above enumerated.

The invention is illustrated in the accompanying drawings as follows Figure 1 shows a side elevation of the well rig.

Fig. 2 a side elevation of the opposite side of the well rig.

Fig. 3 a plan view. I

Fig. A an end view, partly in sectlon, of the reversing gear.

Fig. 5 a section on the lines 5-5 in Fig. 4.

1 marks the well casing, 2 the polished rod, 3 the adjuster for the walking beam 4, 5 the samson post, 6 the angle casting forming a bearing for the connecting rod 7 8 the Specification of Letters Patent.

Patented m e, was.

Serial No. 29,191.

pumping crank, 10 the crank bearing on the pitman 7, 11 the crank shaft and 12 bearings for the crank shaft carried by the rig frame 13.

A drum 14 is mounted on the shaft 11 and this drum is utilized for pulling and lowering the tubing, the crank and walking beam being used for pumping. A gear 15 is fixed on the shaft 11 and is used to drive both the crank 8 and the drum let.

A motor ordinarily an internal combustion motor 16 has the cylinder 17 connecting the rod 18, crank 19, crank shaft 20 and crank shaft bearings 21 mounted on the engine frame 22, the engine frame being carried by the main rig frame 13.

The driving connection between the motor and the pumping crank and drum is comprised in the reversing gear shown in detail in Figs. at and 5. A shaft gear 23 is keyed to the motor shaft 20 by means of a key 24;. The gear shaft 23 has the bearing shoulders 25 on which the floating gear carrier 26 is journaled. The gear carrier is formed of two side webs or plates between which the floating gears 27 are journaled. Pins 28 extend between the sides of the carrier 26 and form bearings for the floating gears .27. The floating gears may be increased in number if desired, three being here shown. An internal external gear 29 has its internal gear meshing the floating gears 27 and the external gear thereon meshing the gear 15 on the shaft 11. The in ternal external gear 29 has the bearing shoulders 30 which are journaled on the surface 31 on the outer periphery of the carrier 26. V

It will be observed that if the carrier 26 is locked against rotation and the shaft gear 23 is rotated by the engine or motor that the gear 29 will be rotated through the action of the intermediate or floating gears 27, the direction of rotation being the reverse of that of the motor shaft and the speed of rotation being in proportion to the number of teeth on the internal face of the ear 29 and the shaft gear. It will also be 0 served that if the carrier 26 is locked with the engine shaft that then the floating gear 27 will be locked with the shaft gear 23 and will consequently drive the gear 29 with and at the same speed and in the same direction as the engine.

The carrier 20 is provided with a brake flange 32 on which a band brake 33 is designed to operate. The band brake is operated by a lever 34. The lever 34: is pivoted on a pin 35 and one end of the handbrake is anchored on this pin. Theopposite end of the band brake is secured to the lever by means of a pin 36 (see Fig. 2)

The flange. 32;.has a cone clutch surface 37 on its inner periphery adapted to be operated upon by a cone clutch 38. The cone clutch 38.-is carried by a ,sleeve39having a spline and groove connection with the engine shaft. The sleeveis provided With .the groove 4.0 in which is arranged theusua'l ring 41. The sleeve is actuated through the ring 41 by a lever 4L2 acting ,on the ring 41. The leverv 42 is fulcrumed on apin 43 carried by the post 44 extending from the engine frame.

In starting, theba-nd brake 33 and clutch 38 are both thrown out of engagement. This breaks the driving connection between the engine and the crank and drum so that the engine can be readily started. After the engine is started, the band brake 33 is set this giving to the gear 29 a forward direction as the mechanism or, drum is arranged. With this connection the pumping is accomplished if desired. Where the rig is used forpull ing with the band brake set as suggested the cable can be wound 011 the drum for elevating the tubing. hen the exposed lengths of tubing are disconnected from the tubing, in thewell, the band brake is released and the clutch 38 set thus rapidly lowering the tubing to. the pile. When the tubing is returned to the well the tubing is elevated from the pile by setting the band brake 33 and thelengths elevated are connected with the string of tubing in the well. The tubing is then lowered by manipulating the band brake so as to release it sufliciently topermit the backward movement of the drum. It will be understood that if the handbrake is' set, the drum will be driven-to lift the tubing so that by giving to the brake more or less pressure the speed at which the tubing is lowered may be nicely controlled and the tubing can be instantly raised slightly after (flop ies of this patent maybe. obtained. for

of the tubing makes the application of the.

clutehaml. ra e to a g r 'avieg a Power advantage over direct-applicat on to the drum. very desirable. As shown this power advantageisindicated bythe relative sizes of the. gear 15. andgear 29.

Whatl claim as new is 1. In a reversing gear for well rigs, the combination of a drivingshaft, a gear secured to' the shaft, a drum operating gear.

having inner and outer teeth, pinions connecting thegears, a carrierforsaid pinions, frictional means for connecting the carrier and the shaft, and other frictional means for retarding rotation of the carrier.

2. In a reversin gear for well rigs, the combination of a driving shaft, a. gear secured to. the shaft, and having lateral hearing shoulders, drum operating gear h'aving lateral bearing shoulders, pinions connecting thegears, a carrierfor the pinions having, inner and, outer bearing surfaces cooperating with the bearing shoulders, and controlling means for the carrier.

3. In a reversing mechanism for well rigs, the combination of a drivingelement, a gear connected to the element, a drum operating gear, pinions connectingsaid gears, a carrierfor the pinions having lateralfrictional surfaces at oneside thereof, and controlling means cooperating withthe'surfaces.

In testimony whereoflhave hereunto set my hand in the presence of two subscribing witnesses.

FRED J 'OSEPH, MOSER.

Witnesses i VILLIAM Gr. LUDWIGT, AIgTHURGi A QE fivecents each, v1oy." add resting the. Commissioner... of; Patents, Washington, 11.03.. 

